Assumptions to be made in designing a vehicle Range of values for Gross Vehicle Weight, Frontal Area, maximum speed, maximum acceleration, Gradability in different gears- Calculation, Tabulation and Plotting of Curves for Air and Rolling Resistances at various vehicle speeds - Calculation and Plotting of Driving force - Power requirement for different loads and acceleration, Maximum Power calculation.
Tire forces and moments, Tire structure, Longitudinal and Lateral force at various slip angles, rolling resistance, Tractive and cornering property of tire. Performance of tire on wet surface. Ride property of tires. Magic formulae tire model, Estimation of tire road friction. Test on Various road surfaces. Tire vibration.
Human response to vibration - Sources of Vibration - Design and analysis of Passive, Semi-active and Active suspension using Quarter car model - Influence of suspension stiffness, suspension damping, and tire stiffness - Skyhook damping - Air suspension system and their properties.
LONGITUDINAL DYNAMICS AND CONTROL
Aerodynamic forces and moments – Load Distribution for three wheeler and four wheeler - Calculation of Maximum acceleration, Reaction forces for Different drives - Braking and Driving torque - Prediction of Vehicle performance - ABS, stability control, and Traction control.
Steady state handling characteristics - Steady state response to steering input - Testing of handling characteristics - Transient response characteristics - Direction control of vehicles - Roll center, Roll axis, Vehicle under side forces - Stability of vehicle on banked road, during turn - Effect of suspension on cornering.
Reference Book:
1.William H. Crouse, “Automotive mechanics†– 10th Edition, Tata Mc Graw Hill Publications Co. New Delhi, 2016
2.Dean Karnopp, “Vehicle Dynamics, Stability & Control†2nd Edition, CRC Press 2013.
3.Karl Popp & Werner Schiechlen, “Ground Vehicle Dynamics†Springer 2010.
4.Hans Pacajka, “Tire and Vehicle Dynamics†3rd Edition, Elseveir 2012.
5.Reza N. Jazer, “Vehicle Dynamics: Theory and Application†2nd Edition, Springer 2013.
Text Book:
1.Giri. N. K., "Automotive Mechanics,†Khanna Publishers, New Delhi, 2008.
2.Rajesh Rajamani, “Vehicle Dynamics and Controlâ€, 2nd Edition, Springer 2012.
